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Noncommutative Geometry and Classical Orbits of Particles in a Central Force Potential

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Communications in Theoretical Physics 2004年第2X期42卷 183-184页

作者： b.mirza m.Dehghani InstituteforStudiesinTheoreticalPhysicsandmathematics P.O.Box5746Tehran19395Iran DepartmentofPhysics IsfahanUniversityofTechnologyIsfahan84154Iran

We investigate the effect of the noncommutative geometry on the classical orbits of particles in a central force potential The relation is implemented through the modified commutation relations [xi,xj] = iθij. Compar... 详细信息

关键词：非交换几何学行星轨道量子万有引力行星物理学莱布尼兹规则哈密顿算符

On Thermodynamics of AdS black Holes in Arbitrary Dimensions

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Chinese Physics Letters 2012年第10期29卷 9-11页

作者： A.belhaj m.Chabab El moumni m.b.Sedra Centre of Physics and mathematics CPM-CNESTENRabatMorocco High Energy Physics and Astrophysics Laboratory FSSMCadi Ayyad UniversityMarrakeshMorocco UniversitéIbn Tofail Facultédes SciencesDépartement de PhysiqueLHESIRKénitraMorocco

Considering the cosmological constantΛas a thermodynamic pressure and its conjugate quantity as a thermodynamic volume as proposed by Kubiznak and mann[*** Energy Phys.1207(2012)033],we discuss the critical behavior of charged AdS black hole in arbitrary dimensions *** particular,we present a comparative study in terms of the spacetime dimension d and the displacement of critical points controlling the transition between the small and the large black *** behaviors vary nicely in terms of *** result shows that the equation of state for a charged Reissner–Nordstrom AdS black hole predicts an universal number given by(2d-5)/(4d-8).The three-dimensional solution is also discussed.

关键词： thermodynamic critical dimensions

Performance evaluation of up-flow anaerobic sludge blanket(UASb) reactor for treatment of paper mill wastewater

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Journal of Environmental Sciences 2004年第2期16卷 194-198页

作者： m. mahadevaswamy b.m. Sadashiva murthy A.R. Girijamma Department of Environmental Engineering S.J.College of EngineeringDepartment of Environmental EngineeringS.J.College of EngineeringDepartment of Environmental EngineeringS.J.College of Engineering Mysore-570 006Karnataka StateIndiaMysore-570 006Karnataka StateIndiaMysore-570 006Karnataka StateIndia

The present study deals with the performance evaluation of the UASb reactor under varied organic loading rate(OLR) for the treatment of paper mill wastewater. The sludge granulation process started after 120 days from the start-up period. Sludge granules size was found to be 0 8 mm at OLR of 1 72 kgCOD/(m 3·d), which reached maximum size of about 1 0 to 1 2 mm at OLR of 2 1 kgCOD/(m 3·d). At the end of initial OLR of 1 0 kgCOD/(m 3·d) the VSS concentration was 12 86 gVSS/L, which got increased to 38 05 gVSS/L at the end of an OLR 2 1 kgCOD/(m 3·d). most of the times VFA recorded were well within the limit of VFA reported in anaerobic fermentation process. many times the pH observed was between 6 5 and 7 8, which is more favorable for any anaerobic process. It is also found that pH within the reactor increases along with the height of reactor. The total maximum biogas production was found to be 0 40 L/gCOD removals at OLR of 2 1 kgCOD/(m 3·d) and the maximum bOD removal at this stage was observed to be 90%.

关键词： UASb biogas anaerobic digestion sludge loading rate organic loading rate

The C–V and G/ω–V Electrical Characteristics of ^(60)Co γ-Ray Irradiated Al/Si_(3)N_(4)/p-Si (mIS) Structures

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Chinese Physics Letters 2013年第7期30卷 193-197页

作者： S.Zeyrek A.Turan m.m.bülbül Department of Physics Faculty of Arts and SciencesDumlupınar University43100KütahyaTurkey Department of Physics Faculty of SciencesGazi University06500BeşevlerAnkaraTurkey

The influence of ^(60)Co(γ-ray)irradiation on the electrical characteristics of Al/Si_(3)N_(4)/p-Si(mIS)structures is investigated using capacitance-voltage(C–V)and conductance-voltage(G/ω–V)*** mIS structures are exposed to a ^(60)Coγradiation source at a dose of 0.7 kGy/h,with a total dose range of 0–100 *** C–V and G/ω–V properties are measured before and after ^(60)Coγ-ray irradiation at 500 kHz and room *** is found that the capacitance and conductance values decrease with the increase in the total dose due to the irradiation-induced defects at the *** results also indicate thatγradiation causes an increase in the barrier height Фb,Fermi energy EF and depletion layer width W_(D).The interface state density(N_(ss)),using the Hill–Coleman method and dependent on radiation dose,is determined from the C–V and G/ω–V measurements and decreases with an increase in the radiation *** decrease in the interface states can be attributed to the decrease in the recombination centers and the passivation of the Si surface due to the deposition insulator layer(Si_(3)N_(4)).In addition,it is clear that the acceptor concentration NA decreases with increasing radiation *** profile of series resistance Rs for various radiation doses is obtained from forward and reverse-biased C–V and G/ω–V measurements,and its values decrease with increasing radiation dose,while it increases with increasing voltage in the accumulation region.

关键词： capacitance interface attributed

Calculation of Radii and Density of ^(7-19)b Isotopes Using Effective Skyrme Force

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Communications in Theoretical Physics 2008年第3期49卷 696-702页

作者： E.Tel S.Okuducu G.Tatar N.N.Akti m.H.blükdemir Gazi University Faculty of Arts and SciencesAnkaraTurkey

Abstract In this study, the proton and neutron densities, charge densities, rms nuclear charge radii, rms nuclear mass radii, rms nuclear proton, neutron radii, and neutron skin thickness are calculated by using Harfree-Fock method with an effective nucleon-nucleon Skyrme interactions with SⅠ, SⅡ, SⅣ, T3, SKm, and SKm^＊ parameters. These nuclear properties for the neutron-rich isotopes of b （boron） are presented. The calculated results are compared with the experimental and theoretical results of other researchers.

关键词： ^7-9b isotopes halo nuclei Skyrme force Hartree-Fock calculations

The class A macrophage scavenger receptor type I (SR-AI) recognizes complement iC3b and mediates NF-κb activation

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Protein & Cell 2010年第2期1卷 174-187页

作者： Jason W.K.Goh Yen Seah Tan Alister W.Dodds Kenneth b.m.Reid Jinhua Lu Department of microbiology Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117597Singapore mRC Immunochemistry Unit Department of BiochemistryUniversity of OxfordSouth Parks RoadOxford OX13QUUnited Kingdom Immunology Programme National University of SingaporeSingapore 117597Singapore

The macrophage scavenger receptor SR-AI binds to host tissue debris to perform clearance and it binds to bacteria for *** addition,SR-AI modulates macrophage activation through cell ***,investigation of SR-AI signaling on macrophages is complicated due to its promiscuous ligand specificity that overlaps with other macrophage ***,we expressed SR-AI on HEK 293T cells to investigate its ligand binding and *** 293T cells,SR-AI could respond to *** DH5α,leading to NF-κb activation and IL-8 ***,this requires *** DH5αto be sensitized by fresh serum that is treated with heat-inactivation or complement C3 ***-C3 antibody inhibits the binding of SR-AI to serum-sensitized DH5αand blocks DH5αstimulation of SR-AI *** analysis showed that SR-AI can directly bind to purified iC3b but not C3 or *** mutagenesis,The SRCR domain of SR-AI was found to be essential in SR-AI binding to serum-sensitized DH5α.These results revealed a novel property of SR-AI as a complement receptor for iC3b-opsonized bacteria that can elicit cell signaling.

关键词： SR-AI complement iC3b signalling 293T cells macrophage

ON SOLVAbILITY OF A bOUNDARY VALUE PRObLEm FOR THE POISSON EQUATION WITH A NONLOCAL bOUNDARY OPERATOR

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Acta mathematica Scientia 2015年第5期35卷 970-980页

作者： b.J.KADIRKULOV m.KIRANE Tashkent State Institute for Oriental Studies Laboratoire de mathématiques Image et Applications Université de La Rochelle NAAm Research Group Department of Mathematics Faculty of ScienceKing Abdulaziz University

In this work, we investigate the solvability of the boundary value problem for the Poisson equation, involving a generalized Riemann-Liouville and the Caputo derivative of fractional order in the class of smooth functions. The considered problems are generalization of the known Dirichlet and Neumann oroblems with operators of a fractional order.

关键词： operator of fractional integration and differentiation solvability boundary value problem Riemann-Liouville operator Caputo fractional derivative Poisson equation Dirichlet and Neumann problems

EmDEN-FOWLER TYPE SYSTEm:NOETHER SYmmETRIES AND FIRST INTEGRALS

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Acta mathematica Scientia 2012年第5期32卷 1959-1966页

作者： b.muatjetjeja C.m.Khalique International Institute for Symmetry Analysis and mathematical modelling Department of Mathematical SciencesNorth-West UniversityMafikeng CampusPrivate Bag X 2046Mmabatho 2735Republic of South Africa

We classify a generalized coupled singular Emden-Fowler type system ＋a（t）vn=0,v＋b（t）um=0 with respect to the standard first-order Lagrangian according to the Noether point symmetries which it *** integrals of the various cases which admit Noether point symmetries are then *** system was discussed in the literature from the view-point of existence and uniqueness of positive solutions.

关键词： Lagrangian Noether symmetry first integrals Emden-Fowler type system Gauge function

First Principles Simulation of molecular Oxygen Adsorption on SiC Nanotubes

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Communications in Theoretical Physics 2010年第4期53卷 742-748页

作者： m.D.Ganji b.Ahaz Department of Chemistry Islamic Azad University

We study the binding of molecular oxygen to a （5, 0） single walled SiC nanotube, by means of density functional calculations. The center of a hexagon of silicon and carbon atoms in sites on SiCNT surfaces is the most stable adsorption site for 02 molecule, with a binding energy of -38.22 eV and an average Si-O binding distance of 1.698 A. We have also tested the stability of the 02-adsorbed SiCNT/CNT with ab initio molecular dynamics simulation which have been carried out at room temperature. Furthermore, the adsorption of 02 on the single walled carbon nanotubes has been investigated. Our first-principles calculations predict that the 02 adsorptive capability of silicon carbide nanotubes is much better than that of carbon nanotubes. This might have potential for gas detection and energy storage.

关键词： adsorption oxygen molecule DFT SiCNTs CNTs sensors